Commit graph

10 commits

Author SHA1 Message Date
Nick Craig-Wood
b33140ddeb union: add :writback to act as a simple cache
This adds a :writeback tag to upstreams. If set on a single upstream
then it writes back objects not found into that upstream.

Fixes #6934
2023-09-04 12:03:26 +01:00
albertony
5d6b8141ec Replace deprecated ioutil
As of Go 1.16, the same functionality is now provided by package io or
package os, and those implementations should be preferred in new code.
2022-11-07 11:41:47 +00:00
Nick Craig-Wood
ed87ae51c0 union: support metadata 2022-06-29 17:30:37 +01:00
Nick Craig-Wood
5dd51e6149 union: fix deadlock when one part of a multi-upload fails
Before this fix, rclone would deadlock when uploading two files at
once, if one errored. This caused the other file to block in the multi
reader and never complete.

This fix drains the input buffer on error which allows the other
upload to complete.

See: https://forum.rclone.org/t/union-with-create-policy-all-copy-stuck-when-first-union-fails/29601
2022-03-09 11:30:55 +00:00
Nick Craig-Wood
96e099d8e7 union: fix error handling broken by removal of github.com/pkg/errors
There were instances of errors.Wrap being called with a nil error
which the conversion didn't deal with correctly.
2021-11-09 13:43:45 +00:00
Nick Craig-Wood
e43b5ce5e5 Remove github.com/pkg/errors and replace with std library version
This is possible now that we no longer support go1.12 and brings
rclone into line with standard practices in the Go world.

This also removes errors.New and errors.Errorf from lib/errors and
prefers the stdlib errors package over lib/errors.
2021-11-07 11:53:30 +00:00
Nick Craig-Wood
ebd9462ea6 union: fix union attempting to update files on a read only file system
Before this change, when using an all create method with one of the
upstreams being read only, if there was an existing file on the read
only remote, it was impossible to update it.

This change detects that situation and creates the file on a
read/write upstream. This file will shadow the file on the read/only
upstream. If it is deleted the read only upstream file will be visible
again.

Fixes #4929
2021-03-15 19:22:07 +00:00
Nick Craig-Wood
23c826db52 union: fix writing with the all policy - fixes #4534
Before this change writing with the all policy deadlocked while
uploading.

This change fixes the problem by fixing the multi reader, closing the
pipes at the correct time with the correct error. This is factored
into a new function as it was used twice.

This patch also adds a new test which tests the all policies.
2020-09-01 18:21:03 +01:00
Martin Michlmayr
041b201abd doc: fix typos throughout docs and code 2020-05-25 11:23:58 +01:00
Max Sum
78a9e7440a union: Implement multiple writable remotes 2020-03-21 18:11:24 +00:00